John Martyn (academic) explained

John Martyn (died 1473), also known as John Marten, was a Master of University College, Oxford, England.^{[1] [2]}

Martyn was a Fellow at University College from 1427. As the Senior Fellow of the College, he became Master in 1441, a post he held until his death in 1473. This was a long time (32 years), especially for the period. It is probably the longest period at any Oxford college before 1500. During his time as Master, University College attained its first quadrangle or "quad".

Notes and References

1. Carr, William, University College, Routledge, 1998. . Chapter IV, The Fifteenth Century (pages 53–73).
2. Darwall-Smith, Robin, A History of University College, Oxford. Oxford University Press, 2008. . John Martyn 1441–1473, Pages 57–63.